Lubricator.



G. cooveaf LUBRICATGR.

APPLICATmH FILED JAN. 16, 1911.

Patented July 1?', 19W.

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GEORG-E COOVER, OF OSKALOOSA, IOWA.

LUBRICATOR.

Specicaton of Letters Patent.

Application filed January 16, 1917. Serial No. 142,670.

To all whom it may concern:

Be it known that I, GEORGE CoovER, a citizen of the United States ofAmerica, residing at Oskaloosa, in the-county of Mahaska and State ofIowa, have invented new and useful Improvements in Lubricators, of whichthe following is a specification.

My present invention relates to improve- .ments in lubricators of thepiston rod type, and is designed for the purpose of providing a deviceof this character that is comparatively inexpensive of production andmaintenance, but which is durable, and efficient in performing thefunctions for which it is intended.

rIhe device is particularly applicable for use in connection with thereciprocating piston rod of steam engines of the locomotive type andwhile in use it not only prolongs the life of the piston and packing ofthe engine, but at the same time prevents the escape of steam with itsconsequent danger and annoyance to the locomotive driver or engineerbecause of the fact that the escaping steam would otherwise obscure hisvision.

As applied according to my invention the lubricator or swab holder ispractically indestructible, and it is also capable of utilizing a low orinferior grade of swab material in connection with lubricating oil, allof` which factors and features are necessary and instrumental infurnishing a desirable and efficient device for the purpose oflubricating the piston rod.

In the accompanying drawings I have illustrated one complete example ofthe physical embodiment of my invention as now actually in use onrailroad locomotives, constructed according to the best mode I have sofar devised for the practical application of the principles of myinvention, and this particular form of the invention has proven highlysatisfactory in its use.

Figure 1 is a side elevation of a lubricator according to my invention,shown applied to a piston rod.

Fig. 2 is a transverse sectional view of the upper guide bar and pistonrod, showing the lubricator as inA front elevation on line 2-2 of Fig.1.

Fig. 3 is a horizontal sectional view on line 3-8 of Fig. 2.

In order to clearly illustrate the construction and use of my inventionI have eX- Copies of this patent may be obtained for emplied in thedrawings a portion of a steam engine, the piston rod being indicated bythe numeral 1, the cross head being designated by the numeral 2; and 3and 4 indieating the upper and lower guide bars for the cross head. i

In its construction the device is desiguedly simple, and it embodies theuse of the long metallic back plate 5 which may be of stamped sheetmetal, together with its complementary clamp plate 6, and these twoplates are hinged together at 7. At their lower ends the back plate andthe clamp plate are broadened and forked or bifurcated as at 8 and 9,the forks or bifurcations being formed around a semicircular opening inthe ends of the plates so that the plates may be suspended over thepiston rod without coming in direct contact therewith. These bifurcatedplates fit neatly around the upper portion of the piston rod and holdbetween them the lubricating swab 10 which conforms to the shape of thepiston rod and is held in contact therewith so that its containedlubricant, preferably oil, may be applied thereto.

To securely clamp the swab between the two plates I employ a pair ofprotractile springs 11, 11 on the guide pins 12, 12 and these springsforce the upper free end of the clamp plate away from the back platewhile the lower end of the clamp plate is forced toward the back plateto securely clamp the swab. As clearly seen in thedrawings the device isattached to the upper guide rail 3 by means of the flange 13 of the backplate, a top plate 14, and the bolts 15 and nuts 16, and of course islocated in the proper position to be most effective in lubricating thepiston rod as it reciprocates through the swab and bifurcated plateends.

What I claim is In a piston rod lubricator, the combination with a backplate having a bifurcated end, of a clamp plate hinged to said plate andformed with a bifurcated end and a swab held between said bifurcatedplates, a spring above the hinge urging the clamp plate to retain theswab between the bifurcated ends, and means for attaching the device toa cross head guide.

In testimony whereof I aiiiX my signature.

GEORGE coovEn.

ve cents each, by addressingthe Commissioner of Patents, Washington,'.D. G.

Patented July 1 7, 1917.. p

